Headphone



FIG. 1 is a perspective view of the design according to the invention.

FIG. 2 is a front view of the design according to the invention.

FIG. 3 is a rear view of the design according to the invention.

FIG. 4 is a top view of the design according to the invention.

FIG. 5 is a bottom view of the design according to the invention; and,

FIG. 6 is a left side view of the design according to the invention. 

The ornamental design for a headphone, as shown and described. 